[inner-2222] clear the 'sendData' resource in the transaction correctly (cherry pick)

src/main/java/com/actiontech/dble/backend/mysql/nio/handler/transaction/TransactionHandlerManager.java

@@ -74,6 +74,10 @@ public class TransactionHandlerManager {
         }
     }
 
+    public NormalTransactionHandler getNormalTransactionHandler() {
+        return (NormalTransactionHandler) normalHandler;
+    }
+
     public void commit() {
         if (xaTxId != null) {
             xaHandler.commit();

src/main/java/com/actiontech/dble/backend/mysql/nio/handler/transaction/normal/stage/CommitStage.java

@@ -69,6 +69,7 @@ public class CommitStage extends Stage implements TransactionStage {
     }
 
     private void asyncNext(boolean isFail, String errMsg, MySQLPacket sendData) {
+        session.getTransactionManager().getNormalTransactionHandler().clearResources();
         if (isFail) {
             session.setFinishedCommitTime();
             session.setResponseTime(false);
@@ -92,6 +93,7 @@ public class CommitStage extends Stage implements TransactionStage {
     }
 
     private void syncNext(boolean isFail, String errMsg, MySQLPacket sendData) {
+        session.getTransactionManager().getNormalTransactionHandler().clearResources();
         if (isFail) {
             session.getShardingService().setPacketId(0);
             if (sendData != null) {

src/main/java/com/actiontech/dble/backend/mysql/nio/handler/transaction/normal/stage/RollbackStage.java

@@ -42,7 +42,7 @@ public class RollbackStage implements TransactionStage {
         }
 
         session.setResponseTime(false);
-
+        session.getTransactionManager().getNormalTransactionHandler().clearResources();
         LOGGER.info("GET INTO THE NET LEVEL AND THE RESULT IS " + isFail);
         if (isFail) {
             if (sendData != null) {